Home / 81,823.54-122,721.54-22,665.19

Finding the Fourth Proportional to 81,823.54, 122,721.54 and 22,665.19

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Solution

The fourth proportional to 81,823.54, 122,721.54 and 22,665.19 is: 33,993.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,823.54 : 122,721.54 = 22,665.19 : x
  2. Step 2: Convert to fraction form
    81,823.54/122,721.54 = 22,665.19/x
  3. Step 3: Cross multiply
    81,823.54x = 122,721.54 × 22,665.19
  4. Step 4: Simplify right side
    81,823.54x = 2,781,507,021.19
  5. Step 5: Solve for x
    x = 2,781,507,021.19/81,823.54
  6. Step 6: Final answer
    x = 33,993.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.